Abstract
The global energy shortage has revived the interest in hydroelectric power, but extreme geological condition always pose challenges to the construction of hydroelectric power stations with large underground caverns. To solve the problem of safe design of large underground caverns, a Chinese-style intelligent stability design, representing recent developments in Chinese techniques for the construction of underground hydropower systems is presented. The basic aim of this method is to help designers improve the stability and design efficiency of large underground hydropower cavern groups. Its flowchart consists of two parts, one is initial design with an ordinal structure, and the other is dynamic design with a closed loop structure. In each part of the flowchart, analysis techniques, analysis content and design parameters for caverns’ stability are defined, respectively. Thus, the method provides designers with a bridge from the basic information of objective engineering to reasonable design parameters for managing the stability of hydraulic cavern groups. Application to two large underground caverns shows that it is a scientific and economical method for safely constructing underground hydraulic caverns.
Highlights
In the past 30 years, electricity generation from hydropower has made a substantial and stable contribution to the electricity demands of society and industry
Over the past few decades a series of large hydroelectric power stations have been built in China, including the Xiaolangdi station, the Three Gorge station, the Eetan station, the Laxiwa station, and the Xiluodu station, etc., which have promoted the application of intelligent methods in hydropower engineering and have accumulated valuable Chinese-style experiences for stability design of underground caverns
This paper proposes a method, named intelligent stability design (ISD), for the safety management of large underground hydropower cavern groups, which includes many intelligent algorithms and dynamic feedback principles
Summary
In the past 30 years, electricity generation from hydropower has made a substantial and stable contribution to the electricity demands of society and industry. Over the past few decades a series of large hydroelectric power stations have been built in China, including the Xiaolangdi station, the Three Gorge station, the Eetan station, the Laxiwa station, and the Xiluodu station, etc., which have promoted the application of intelligent methods in hydropower engineering and have accumulated valuable Chinese-style experiences for stability design of underground caverns . Case studies show that it is a scientific method for safely and economically designing large underground hydraulic caverns This method represents the fruits of recent Chinese techniques in this field, and a future direction for construction in hydropower underground engineering projects
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